Dissapearing sysvol share

Three times now, once every couple of months a few of my DCs seem to
loose the shares for a brief period of time. I cannot see anything
wrong in AD. Replication is up to date, no errors in DNS. This
morning users were having problems during "Applying Computer Settings"
this is trying to load the policy but the machine cannot see the sysvol
share on thier DC. A reboot restored the sysvol share but about 10
minutes later it dissapeared again. This has happened on another DC in
another location back in August. After about an hour or so the problem
goes away for another month or so.

I am lacking ideas where to look to resolve this issue especially when
it only comes up every month and a half. Please let me know if you have
any ideas or have seen this issue.

Thanks
Michael

do you have any errors in event viewer? or use dcdiag to check any errors.

Bob Lin, MS-MVP, MCSE & CNE
Networking, Internet, Routing, VPN Troubleshooting on http://www.ChicagoTech.net
How to Setup Windows, Network, VPN & Remote Access on http://www.HowToNetworking.com
"the_Groundhog" <(E-Mail Removed)> wrote in message news:(E-Mail Removed) oups.com...
Three times now, once every couple of months a few of my DCs seem to
loose the shares for a brief period of time. I cannot see anything
wrong in AD. Replication is up to date, no errors in DNS. This
morning users were having problems during "Applying Computer Settings"
this is trying to load the policy but the machine cannot see the sysvol
share on thier DC. A reboot restored the sysvol share but about 10
minutes later it dissapeared again. This has happened on another DC in
another location back in August. After about an hour or so the problem
goes away for another month or so.

I am lacking ideas where to look to resolve this issue especially when
it only comes up every month and a half. Please let me know if you have
any ideas or have seen this issue.

Thanks
Michael